وعدكم الله مغانم كثيرة تأخذونها فعجل لكم هذه وكف أيدي الناس عنكم (48:20) بالانجليزي

(48:20) Allah has promised you abundant spoils which you shall acquire. *35 He has instantly granted you this (victory) *36 and has restrained the hands of people from you *37 that it may be a Sign for the believers *38 and He may guide you to a Straight Way. *39

Tafseer Abu-al-A'la Maududi

Page 513 English Traditional

*35) This refers to the other victories that the Muslim achieved successively after Khaiber.
*36) This implies the treaty of Hudaibiyah which has been described as "a manifest victory" in the beginning of the Surah.
*37) That is, "He restrained the disbelieving Quraish from attacking you at Hudaibiyah although from all appearances they were in a much better position and yours was a much weaker side militarily." Furthermore, it also implies that no enemy power could muster courage to attack Madinah in those days, whereas after the departure of 1,400 soldiers the Madinah front had become very weak, and the Jews, the polytheists and hypocrites could take advantage of the situation.
*38) Sign of this as to how Allah helps the one who remains steadfast on obedience to Allah and His Messenger and comes out to support and defend the Truth and righteousness with his trust and faith in Allah.
*39) "To the right way" : "To the way of greater insight and faith so that you may remain steadfast on obedience to Allah and His Messenger in the future and may go on marching on the way of truth with trust in AIlah, and may learn this lesson from these experiences that the believer should take practical steps to do whatever is demanded by Allahs Religion with his trust in Him, and should not overestimate either his own strength or the strength of the unbelievers."