Ali ibn Yaqtin said: I asked Abu al-Hasan (AS) about temporary marriage (mut'a). He said: “What have you to do with that? God has made you independent of it.” I said: “I only wished to know it.” He said: “It is in the book of Ali (AS).” [I said:] “May I increase her payment and she extend the term?” He said: “And is there anything that makes it wholesome but that?” (Nawadir li-l-Ashtari, vol. 1, p. 87)
The narrator said: I asked Imam al-Kazim (AS) about temporary marriage. He said: What have you to do with temporary marriage? God has made you independent of a temporary wife. I said: I only wished to know its ruling. He said: Temporary marriage is [attested] in the book of Ali, peace be upon him. I said: Is it permissible for me to increase the payment and for her to extend the term? He said: Is there anything but this that makes temporary marriage good?
He was asked: Is it valid, when a man swears to strike his slave a certain number of lashes, that he gather sticks together, strike him with them, and reckon them according to their number? He said: “Yes. Ali flogged al-Walid ibn Uqba for wine with a whip that had two thongs, and reckoned each stroke as two strokes.” (Nawadir li-l-Ashtari, vol. 1, p. 172)
Imam al-Baqir (AS) was asked whether, in fulfilling an oath to lash a slave, one may take several switches together and count their total. He said: Yes. When Ali (AS) wished to apply the prescribed penalty to al-Walid for wine-drinking, he took up a whip with two thongs and counted each stroke as two strokes.