Tractate Kallah

A bride is forbidden to her husband without the [marriage] benediction in the same manner as a niddah. Just as a niddah who has not immersed [in the ritual bath] is forbidden to her husband, so likewise is a bride forbidden to her husband without the [marriage] benediction. Whence is the benediction of bridegrooms derived from the Torah? As it is stated, And they blessed Rebekah. And whence do we derive that even a widow is so forbidden? As it is stated, And he took ten men of the elders of the city … And all the people that were in the gate, and the elders said, We are witnesses. The Lord make the woman … and let thy house be like the house of Perez.

After the consummation of her marriage on the first day, a bride is forbidden for the whole of the succeeding seven days, and it is not permitted to take any object from her hand all the seven days. This is the view of R. Eliezer, but R. Joshua said: Not until the matter is examined—if she was niddah while still in her father’s house, she is forbidden [to her husband], but if not she is allowed to him. R. Eliezer was asked, ‘Is it permissible to drink from the hand of the bride so long as her husband is sitting with her at the festive table?’ He replied, ‘Whoever drinks from the hand of a bride is as though he drinks from the hand of a harlot’. [His colleagues] said to him, ‘Are not all the daughters of Israel possessed of good manners?’ He answered, ‘God forbid! Anyone who is not familiar with the Torah cannot be possessed of good manners’. R. Eleazar b. Azariah made a public declaration accompanied by the sounding of three hundred shofars, ‘Whether a bride be of the daughters of a scholar or of an ‘am ha-’areẓ, he who drinks from her hand is as though he drinks from the hand of a harlot’. He further said, ‘Whoever takes a cup from the hand of a bride and drinks from it has no share in the World to Come’.