Those who said it requires ablution

In the view of Sayyiduna Ibn Umar (may Allah be pleased with them both), kissing is like touching, and he used to order ablution because of kissing.

In the view of Sayyiduna Abdullah (may Allah be pleased with him), kissing is like touching, and he used to order ablution because of kissing.

Ibrahim said: When a person kisses with desire, his ablution is broken.

Something similar is reported from al-Sha'bi.

Something similar is reported from al-Sha'bi through another chain.

Abd al-Aziz bin Abdullah said: I asked al-Zuhri about the ruling on kissing. He said: "The scholars used to say that ablution is obligatory because of it."

Al-Hakam and Hammad said: If he kissed or touched, ablution is obligatory upon him.

Al-Sha'bi said: A kiss breaks ablution.

Hammad said: If a man kisses his wife and she does not want it, his ablution is broken, not hers. If the woman kisses the man, ablution becomes obligatory upon the woman, not upon the man. If the man feels desire, his ablution will also be broken; and if the man kisses the woman and she does not want it, but she feels desire, her ablution will be broken.

Ibrahim said to his wife: "O Hunaydah! I praise Allah. If I did not have to keep my ablution, I would kiss you."