‘Umar b. ‘Abd al-‘Aziz told on the authority of Tamim ad-Dari that God’s messenger said, “Ablution must be performed on account of any flow of blood.”
Daraqutni transmitted the two traditions, saying that ‘Umar b. ‘Abd al-‘Aziz neither heard from Tamim ad-Dari nor saw him, and that Yazid b. Khalid and Yazid b. Muhammad* are unknown.
*These men occur in the isnad.
Ibn ‘Umar used to say, “A man’s kiss to his wife and his touching her with his hand are connected with sexual intercourse, and anyone who kisses his wife or touches her with his hand must perform ablution.”