Chapter on Virtues of Hajj
Man Lā Yaḥḍuruh al-Faqīh|Volume 2|Book 3|Chapter 2
وَ رُوِيَ: «أَنَّ اَلْحَاجَّ إِذَا سَعَى بَيْنَ اَلصَّفَا وَ اَلْمَرْوَةِ خَرَجَ مِنْ ذُنُوبِهِ.
It has been narrated: "When the pilgrim performs Sa’y between Safa and Marwah, they are cleansed of their sins."
- Ṣaḥīḥ al-Faqīh