Witr, Duha, and Rawatib Prayers While Traveling

Question:
Honorable Shaykh, he says: You mentioned that the rawatib (regular voluntary prayers) are not performed while traveling, except for the Fajr rawatib. The question is: Is witr also left off while traveling? And are the other recommended prayers, such as the Duha prayer and others, also left off?

Answer:
We said that the rawatib are not independent prayers; one cannot perform them while traveling, nor at dawn, nor at dusk. Likewise, there is no objection to performing tahajjud (the late-night voluntary prayer) at night. The Prophet (peace and blessings be upon him) used to perform tahajjud on his mount, wherever it was heading. As for the Duha prayer, if it is easy for him to pray it, he should pray it. This applies only to the rawatib that are attached to the obligatory prayers, so as not to cause hardship for people. They say that this is not permitted, that it is burdensome, and that Allah intends to make things easy, and that He does not want to cause people hardship in this matter.