429 (صحيح)
“إذا تزوج البكر على الثيب أقام عندها سبعا و إذا تزوج الثيب على البكر أقام عندها ثلاثن”
(هق) عن
429 – It is reported that the Messenger of Allah (peace and blessings of Allaah be upon him) said:
“If a man marries a virgin while he is married, he spends seven nights with a virgin. And if he doesn’t marry a virgin, he spends three nights with her.”
This hadith was narrated by al-Bayhaqyi in Sunan al-Kubra 7/301 from the words of Anas. Imam Bukhari 5213 has included with a different wording.
Sheikh al-Albani called the hadith authentic. See Saheeh al-jami ‘as-saghir 429.