Imam Ja‘far al-Ṣadiq (as): Six things benefit a person after he passes away: a child who seeks forgiveness for him, a copy of the Qur'an which he leaves behind, a plant that he planted, water that he donated in charity, a well that he had dug, and a tradition that others take from him and [practise] after him. Man Lā Yaḥḍuruhu-l Faqīh