Chapter on Oaths, Vows, and Expiations
Man Lā Yaḥḍuruh al-Faqīh|Volume 3|Book 2|Chapter 38
وَ سُئِلَ عَلَيْهِ اَلسَّلاَمُ عَنْ رَجُلٍ غَضِبَ فَقَالَ عَلَيَّ اَلْمَشْيُ إِلَى بَيْتِ اَللَّهِ اَلْحَرَامِ قَالَ "إِذَا لَمْ يَقُلْ لِلَّهِ عَلَيَّ فَلَيْسَ بِشَيْءٍ".
Imam عليه السلام was asked about a man who, in a state of anger, said: "Upon me is to walk to the Sacred House of Allah سبحانه وتعالى." Imam عليه السلام said: "If he did not say, 'It is a vow to Allah سبحانه وتعالى upon me,' then it is of no consequence."
- Ṣaḥīḥ al-Faqīh