10:51

أَثُمَّ إِذَا مَا وَقَعَ ءَامَنتُم بِهِۦٓ ۚ ءَآلْـَٔـٰنَ وَقَدْ كُنتُم بِهِۦ تَسْتَعْجِلُونَ

athumma idhā mā waqaʿa āmantum bihi āl'āna waqad kuntum bihi tastaʿjilūna

Then is it that when it has [actually] occurred you will believe in it? Now? And you were [once] for it impatient.

— Saheeh International

Will you believe in it, when it actually happens?’ It will be said, ‘Now [you believe], when [before] you sought to hasten it?’

— M. A. S. Abdel Haleem

Is it then that when it has actually befallen, you will believe in it? What! Now (you believe)? And you used (aforetime) to hasten it on!"

— Muhammad Muhsin Khan & Muhammad Taqi-ud-Din al-Hilali

Word by Word

أَثُمَّathummaIs (it) then

إِذَاidhāwhen

مَاmāwhen

وَقَعَwaqaʿa(it had) occurred

ءَامَنتُمāmantumyou (will) believe

بِهِۦٓۚbihiin it

ءَآلْـَٔـٰنَāl'ānaNow

وَقَدْwaqadAnd certainly

كُنتُمkuntumyou were

بِهِۦbihiseeking to hasten it

تَسْتَعْجِلُونَtastaʿjilūnaseeking to hasten it