He (Abu Qilabah) said: "If I wish, I could say: 'The Messenger of Allah said'" but he said: "The Sunnah when a man married a virgin after he already has a wife, is that he stays with her seven (nights). And when he married a matron when he already has a wife, he stays with her three (nights)."
Jami` at-Tirmidhi Book 11, Hadith 61
← Previous Hadith "Azl was mentined before the Messenger of Allah and he said: 'Why would one of you do that?'"

Jami` at-Tirmidhi Book 11, Hadith 60 Next Hadith → The Prophet would divide (his time) equally between his wives and said: "O Allah! This is my division in what I have control over, so do not punish me for what You have control over which I do not have control over."

Jami` at-Tirmidhi Book 11, Hadith 62