-->
Lit., "His solemn pledge by which He bound you". Since this pledge is given by the believers to God and not by Him to them, the personal pronoun in "His pledge" can have only one meaning: namely, God's binding thereby the believers to Himself.
There is a particular and a general meaning. The particular meaning refers to the solemn Pledge and Covenant taken by two groups of people at 'Aqaba, a valley near Mina, the first about fourteen months before the Hijra, and the second a little later. These were Pledges of fealty to the Messenger of Allah, comparable to the Covenant under Mount Sinai taken in the time of Moses (See 0. ii. 63 and n. 78). The general meaning has been explained in n. 682 to v. 1: man is under a spiritual obligation under an implied Covenant with Allah: Allah has given man reason, judgment, the higher faculties of the soul, and even the position of vicegerent on earth (ii. 30), and man is bound to serve Allah faithfully-and obey His Will. That obedience begins with cleanliness in bodily functions, food, etc. It goes on to cleanliness of mind and thought, and culminates in purity of motives in the inmost recesses of his heart and soul.