Al-Kāfi
Hadith 18911ـ عَنْهُ عَنْ أَحْمَدَ بْنِ مُحَمَّدِ بْنِ عِيسَى عَنِ ابْنِ فَضَّالٍ عَنْ عَلِيِّ بْنِ عُقْبَةَ عَنْ أَبِي كَهْمَسٍ عَنْ عَمْرِو بْنِ سَعِيدِ بْنِ هِلالٍ قَالَ قُلْتُ لأبِي عَبْدِ الله (عَلَيهِ السَّلام) أَوْصِنِي قَالَ أُوصِيكَ بِتَقْوَى الله وَالْوَرَعِ وَالإجْتِهَادِ وَاعْلَمْ أَنَّهُ لا يَنْفَعُ اجْتِهَادٌ لا وَرَعَ فِيهِ.
11. It is narrated from him (narrator of the Hadith above) from Ahmad ibn Muhammad ibn ‘Isa from ibn Faddal from Ali ibn ‘Aqaba from abu Kahmas from ‘Amr ibn Sa’id ibn Hilal who has said the following: “Once I asked Abu ‘Abdillah (a.s.) to instruct me with good advice. The Imam said, ‘I recommend you to be pious before Allah, restrain from worldly matters (sins) and work hard. Note that there is no benefit in hard work without restraint from worldly matters.’”