alkafi-15163Vol. 8, p. 273
سَمِعْتُ عُثْمَانَ الْأَحْوَلِ يَقُولُ سَمِعْتُ أَبَا الْحَسَنِ ع يَقُولُ لَيْسَ مِنْ دَوَاءٍ إِلَّا وَ هُوَ يُهَيِّجُ دَاءً وَ لَيْسَ شَيْءٌ فِي الْبَدَنِ أَنْفَعَ مِنْ إِمْسَاكِ الْيَدِ إِلَّا عَمَّا يُحْتَاجُ إِلَيْهِ.
I heard from Abu Al-Hassan (asws) saying: ‘There is none from the medicine but it agitates the illness, and there is nothing in the body more beneficial than restraining the hand except from what is needy for it’.