Sahih Muslim 1748
صحيح مسلم#1748SahihIbn 'Umar reported that a person asked the Messenger of Allah (ﷺ) about the night prayer. The Messenger of Allah (ﷺ) said:Prayer during the night should consist of pairs of rak'ahs, but if one of you fears morning is near, he should pray one rak'ah which will make his prayer an odd number for him
Scholarly Authentication
We show the most cautious grade (weakest-wins) as the overall label. Individual scholars graded it as follows:
Every narration in Sahih Muslim is accepted as Sahih (authentic) by the established status of the book.
In-book reference: 6:177