The Lesson on "Encouragement and Warning," an explanation of the hadith of Khubayb ibn al-Urt, in which he said

The Shaykh : Our hadith tonight is about Khubayb ibn al-Urt, a noble Companion. He said: "We emigrated with the Messenger of Allah (peace and blessings be upon him) seeking the Face of Allah, so our reward is with Allah. Among us are those who have died and have not consumed any of their reward, such as Mus'ab ibn 'Umar, who was killed on the Day of Uhud. We found nothing to shroud him in except a cloak; when we covered his head with it, his feet were exposed, and when we covered his feet, his head was exposed. So the Messenger of Allah (peace and blessings be upon him) ordered us to cover his head and to place some ishkhar (a type of grass) on his feet. And among us are those whose fruit has ripened, and they are now reaping it." It was narrated by al-Bukhari, Muslim, al-Tirmidhi, and Abu Dawud, with some brevity.
The author explains some of the unusual words in this hadith, saying: Al-Birdah: A striped cloak made of wool, which is the namirah. Ayna'at: With a yaa following the alif; meaning it reached maturity and ripened. Yahdibuhaa: With a dhammah on the dhal and a kasrah; meaning both forms are correct: yahdubuhaa and yahdibuhaa; meaning he cuts it and gathers it.
Khubayb (may Allah be pleased with him) said: "We emigrated with the Messenger of Allah (peace and blessings be upon him) seeking the Face of Allah." This means that they were striving in the path of Allah, sincere in their religion for Him. This is the standard of the Companions as a rule, though this does not preclude that some among them may have striven for other than the Face of Allah (Mighty and Majestic). This is the nature of humanity; it is not possible for all of them to be on one heart in sincerity and obedience to Allah (Mighty and Majestic). But there is no doubt that the majority of the Companions are described this way, as Khubayb ibn al-Urt (may Allah be pleased with him) said: "They sought nothing but the Face of Allah." So what is said in some historical books of the present age about those who have no worth or no religion, accusing them that the motive for the early Islamic conquests was the love of this world and the accumulation of wealth—this is a baseless claim with no evidence for it. In fact, reality testifies that the matter was exactly the opposite, and there is much evidence for this in authentic Islamic history. This hadith that is before us now is among those proofs, as it explicitly states: "We emigrated with the Messenger of Allah (peace and blessings be upon him) seeking the Face of Allah, so our reward is with Allah."
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Here is a brief pause: How did Khubayb ibn al-Urt know that when they struggled in the path of Allah, seeking the Face of Allah, their reward was guaranteed by Allah? How did he know that? This is a necessary matter in Islam, based on the promise of Allah (Mighty and Majestic) to His believing servants in dozens of texts from the Book, and even more in the Sunnah, that whoever does such and such will receive such and such. The promise of Allah (Mighty and Majestic) is not delayed, . So when the believer knows this reality, he is certain that if he knows he has performed a pure deed for the sake of Allah (Mighty and Majestic), that Allah (Blessed and Exalted is He) must reward him for it; it is a must. And what you heard in the previous lesson from some of the answers by the professor "Ali Khushan," that they used to fear that their deeds would not be accepted, indicates what you heard explained in that session: that the Companions feared Allah (Mighty and Majestic), and they lived between fear and hope. Not because they doubted that if they knew a righteous deed and were sincere in it for Allah (Mighty and Majestic), they would doubt that Allah would not accept it from them; no, how is that? How can a doubter doubt a deed that its doer first performed according to the Sunnah, and then was sincere in it for Allah (Mighty and Majestic)? How can one imagine doubting that Allah (Mighty and Majestic) would accept his work, when Allah says in the clear text of the Noble Qur'an: ?
So their doubt was not regarding the acceptance by Allah of their good deed in which they were sincere for Allah, but rather their doubt was about themselves; perhaps their deed was not good; meaning: it was not in accordance with the Book and the Sunnah. This is the first condition, as you all know, for the acceptance by Allah (Mighty and Majestic) of worship: that it be in accordance with the Sunnah. The second condition is that its doer has been sincere for Allah in it. So how can a person be constantly and eternally, in every deed he does, certain that this deed of his was in accordance with the Book and the Sunnah on one hand, and that he was sincere in it for Allah (Mighty and Majestic) on the other hand? From this, they feared that Allah (Mighty and Majestic) would not accept from them. So from what we mentioned, such as the previous verse and what we referred to besides it, Khubab ibn al-Urt was certain that their reward was guaranteed by Allah (Mighty and Majestic); meaning that Allah accepted it from them and that He will reward them for it.
10:29
Then he elaborates, saying regarding these mujahideen emigrants in the path of Allah: "So among us, some died without having eaten anything of their reward, among them Mus'ab ibn 'Umar."
Here, too, there is a subtle point and an important benefit. He says: "Among us are those who died and did not consume any of their reward." Does a mujahid in the cause of Allah consume any of his reward?
I believe this point is hidden from the majority of students of knowledge, and indeed from many of the specialized scholars; only those who have looked into the Sunnah know it. The explanation and clarification of "consuming from his reward" is in an authentic hadith: that a mujahid in the cause of Allah (Mighty and Majestic) who returns having gained something from the spoils has consumed one-third of his reward, and Allah has saved the remaining two-thirds for him in the Hereafter. However, if the mujahid in the cause of Allah does not obtain any of the material spoils, he returns with his reward complete and abundant for him with Allah (Mighty and Majestic) on the Day of Resurrection.
To this hadith, and without doubt Khubayb ibn al-Urt was cultured, and as they say today, a graduate of the school of the Messenger of Allah (peace and blessings be upon him). In this school, he (peace be upon him) said what you heard of that explanation. So he points very simply to this hadith when he says: "And among us, some did not eat anything of their reward." And he gave an example of that with Mus'ab ibn 'Umar, describing the state of Mus'ab's severe poverty when he was killed as a martyr on the day of Uhud.