Musnad Ahmad 25616

Translation

✧ I said to a person who was dividing the night into three parts and then performing Tahajjud prayer, fearing that I might miss it. He said, "There is no Tahajjud except in sets of five or seven." So I mentioned this to Yahya ibn Al-Jazzaar and Mujahid, and they asked me, "Who did you hear this from?" I replied, "From trustworthy people, narrated by Aisha and Maymunah from the Prophet ﷺ."

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