Nahj al-Balāgha
Hadith 1758١٥٢. وَقَالَ (عليه السلام): لِكُلِّ مُقْبِلٍ إِدْبَارٌ، وَمَا أَدْبَرَ كَأَنْ لَمْ يَكُنْ.
152. Amīr al-mu’minīn, peace be upon him, said: Every comer has to return and after returning it is as though he never existed.