The word(s) "strengthening" appears 2 time(s) in 2 verse(s) in Quran in Muhammad Pickthal translation.

(1) And the likeness of those who spend their wealth in search of Allah's pleasure, and for the strengthening of their souls, is as the likeness of a garden on a height. The rainstorm smiteth it and it bringeth forth its fruit twofold. And if the rainstorm smite it not, then the shower. Allah is Seer of what ye do.

(2) And if We had decreed for them: Lay down your lives or go forth from your dwellings, but few of them would have done it; though if they did what they are exhorted to do it would be better for them, and more strengthening;