And from Anas (may Allah be pleased with him), who said: The Messenger of Allah (peace and blessings be upon him) said: "When one of you is in prayer, he is conversing with his Lord

The Shaykh :" And from Anas (may Allah be pleased with him), who said: The Messenger of Allah (peace and blessings be upon him) said:

When any one of you is engaged in prayer, he is holding intimate conversation with his Lord, so none of you must spit in front of him, or towards his right side, but towards his left side under his foot.

إذا كان أحدكم في الصلاة فإنه يناجي ربه، فلا يبزقن بين يديه ولا عن يمينه ولكن عن شماله تحت قدمه

Sahih Muslim 551

. Agreed upon by al-Bukhari and Muslim, and in a narration:

or under his foot

أو تحت قدمه

".
This also relates to khushu' (humility) in prayer, as we will explain meaning he is praying, and prayer is a general term that includes both obligatory and voluntary prayers
meaning he speaks to Him in a low voice, because among the characteristics of the voice is that it can be a call and it can be a private conversation, and this is indicated by the saying of Allah (Blessed and Exalted is He) regarding Musa So if the one being addressed is far away, it is a call, and if he is close, it is a private conversation. So his saying: means he speaks to Him, and the Lord (Mighty and Majestic) speaks to Him, but with a loud voice or a low voice?
The student: Low.

The Shaykh : Low, yes. Spittle is well known, and "in front of him" means between him and the place of his prostration, and the closer it is, the uglier it is.
So where does he spit? He says: And in a narration: , to his left, far from the foot, or under his foot. Which foot? The left, so that the left side and the spittle under the foot coincide.