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I would definitely watch at night the prayer observed by the Messenger of Allah (ﷺ). He prayed two short rak'ahs, then two long, long, long rak'ahs, then he prayed two rak'ahs which were shorter than the two preceding rak'ahs, then he praye

I shall watch the prayer of the Messenger of Allah (ﷺ) at night. I slept at the threshold of his door or of his tent. The Messenger of Allah (ﷺ) prayed two light rak'ahs, and then prayed two long, long, long rak'ahs. He then prayed two rak'

“I said, I must observe how the Messenger of Allah (ﷺ) prays tonight. So I lay down at his door. The Messenger of Allah (ﷺ) got up and prayed two brief Rak’ah, then two long ones, which were very, very long, then two Rak’ah which were short