The word(s) "on" appears 5797 time(s) in 3270 verse(s) in Quran in Abdullah Yusuf Ali translation.

(1281) Come not nigh to the orphan's property except to improve it, until he attains the age of full strength; and fulfil (every) engagement, for (every) engagement will be enquired into (on the Day of Reckoning).

(1282) Give full measure when ye measure, and weigh with a balance that is straight: that is the most fitting and the most advantageous in the final determination.

(1283) And pursue not that of which thou hast no knowledge; for every act of hearing, or of seeing or of (feeling in) the heart will be enquired into (on the Day of Reckoning).

(1284) Nor walk on the earth with insolence: for thou canst not rend the earth asunder, nor reach the mountains in height.

(1285) These are among the (precepts of) wisdom, which thy Lord has revealed to thee. Take not, with Allah, another object of worship, lest thou shouldst be thrown into Hell, blameworthy and rejected.

(1286) Has then your Lord (O Pagans!) preferred for you sons, and taken for Himself daughters among the angels? Truly ye utter a most dreadful saying!

(1287) We have explained (things) in various (ways) in this Qur'an, in order that they may receive admonition, but it only increases their flight (from the Truth)!

(1288) Say: If there had been (other) gods with Him, as they say,- behold, they would certainly have sought out a way to the Lord of the Throne!

(1289) Glory to Him! He is high above all that they say!- Exalted and Great (beyond measure)!

(1290) And We put coverings over their hearts (and minds) lest they should understand the Qur'an, and deafness into their ears: when thou dost commemorate thy Lord and Him alone in the Qur'an, they turn on their backs, fleeing (from the Truth).