وَتَوَكَّلْ عَلَى ٱللَّهِ ۚ وَكَفَىٰ بِٱللَّهِ وَكِيلًا
3:160; 4:7; 26:218.
Commentary:
In v. 2 above the Holy Prophet and his disciples were exhorted to take God as a means of protection. In this verse they have been enjoined to put their complete trust in Him alone. This insistence about reliance on Divine help and protection implied that very hard days were ahead of the Holy Prophet and the Muslims and, by this exhortation to rely on God, they were being mentally prepared for them. As the verses that follow show, the present Surah was revealed at a most critical period in the Holy Prophet’s eventful career. The whole of Arabia had risen like one man against Islam. Besides, a most unscrupulous campaign of slander and calumny had also been let loose against him by the "Hypocrites" and Jews of Medina. Those indeed were very difficult days for Islam.
3:160; 26:218.