Al-Kāfi

Hadith 399
kindnesstaqwa
2ـ وَبِإِسْنَادِهِ قَالَ قَالَ أَبُو جَعْفَرٍ (عَلَيهِ السَّلام) مَنْ قُسِمَ لَهُ الرِّفْقُ قُسِمَ لَهُ الإيمَانُ.
2. Through the same chain of narrators it is narrated from abu Ja’far (a.s.) who has said the following: “Whoever has received a share of friendliness has received a share of belief.”
Source: Shaykh Muḥammad b. Yaʿqūb al-Kulaynī