Al-Kāfi

Hadith 392
fasting
2ـ عَلِيُّ بْنُ إِبْرَاهِيمَ عَنْ أَبِيهِ وَمُحَمَّدُ بْنُ إِسْمَاعِيلَ عَنِ الْفَضْلِ بْنِ شَاذَانَ جَمِيعاً عَنِ ابْنِ أَبِي عُمَيْرٍ عَنْ جَمِيلٍ عَنْ زُرَارَةَ عَنْ أَبِي جَعْفَرٍ (عَلَيْهِ السَّلاَم) قَالَ لا تَنْقُضُ الْقُبْلَةُ الصَّوْمَ.
2. Ali ibn Ibrahim has narrated from his father from and Muhammad ibn ‘Isma‘il has narrated from al-Fadl ibn Shadhan from all from Ibn Abi ‘Umayr from Jamil from Zurarah who has said the following: “Abu Ja‘far (a.s.), has said, ‘Kissing does not destroy the fast.’”
Source: Shaykh Muḥammad b. Yaʿqūb al-Kulaynī