Musannaf Ibn Abi Shaybah 18039 — What a man is instructed to do when

Umm Musa said: In Madinah, when a girl was sent off to her husband, she would first be brought to the mosque and pray two rak'ahs there, and she would be brought to the wives of the Prophet (peace and blessings be upon him) so that they would supplicate for her.
Abu Bakr (Ibn Abi Shaybah) said: He (the narrator) said: I think she said "two rak'ahs".