Al-Kāfi
Hadith 8494ـ عَلِيُّ بْنُ إِبْرَاهِيمَ عَنْ أَبِيهِ عَنِ النَّوْفَلِيِّ عَنِ السَّكُونِيِّ عَنْ أَبِي عَبْدِ الله (عَلَيْهِ الْسَّلام) قَالَ قَالَ رَسُولُ الله (صلّى اللهُ عَلَيْهِ وَآلِه) ضَرْبُ الْمُسْلِمِ يَدَهُ عَلَى فَخِذِهِ عِنْدَ الْمُصِيبَةِ إِحْبَاطٌ لأَجْرِهِ.
4. Ali ibn Ibrahim has narrated from his father, from al-Nawfaliy from al-Sakuniy who has said the following: “Abu ‘Abd Allah (a.s.), has said that the Messenger of Allah has said, ‘If a Muslim strikes his hand against his thigh due to suffering and sorrow, it causes his deeds to become void and fruitless.’”