Translation of the verse 43 from Surah Az-Zukhruf : Number of verses 89 - - page 492 - Part 25.
So hold you (O Muhammad SAW) fast to that which is inspired in you. Verily, you are on a Straight Path.
So adhere to that which is revealed to you. Indeed, you are on a straight path.
(43:43) So hold fast to what has been revealed to you. Surely you are on the Straight Way. *38
*38) That is, "You should not worry as to what punishment do those who are resisting and opposing the truth with injustice and dishonesty receive and when, nor should you worry whether Islam flourishes during your lifetime or not. For you this satisfaction is qute enough that you are on the Right Path. Therefore, you should go on fulfilling your mission unconcerned about the results, and leave it to Allah whether He defeats falsehood in front of you or after you. "
Source : Az-Zukhruf Verse 43: So adhere to that which is revealed to you. Indeed, you are on a straight path.