Chapter on Sales
Man Lā Yaḥḍuruh al-Faqīh|Volume 3|Book 2|Chapter 11
وَ رَوَى رَوْحٌ عَنْ أَبِي عَبْدِ اَللَّهِ عَلَيْهِ اَلسَّلاَمُ قَالَ: "تِسْعَةُ أَعْشَارِ اَلرِّزْقِ فِي اَلتِّجَارَةِ ".
Rawh narrated from Abu Abdillah عليه السلام who said: "Nine-tenths of sustenance is in trade."
- Ṣaḥīḥ al-Faqīh