Yusuf Ali
It is He Who sent down tranquillity into the hearts of the Believers, that they may add faith to their faith;- for to Allah belong the Forces of the heavens and the earth; and Allah is Full of Knowledge and Wisdom;-

Sahih International
It is He who sent down tranquillity into the hearts of the believers that they would increase in faith along with their [present] faith. And to Allah belong the soldiers of the heavens and the earth, and ever is Allah Knowing and Wise.

Shakir
He it is Who sent down tranquillity into the hearts of the believers that they might have more of faith added to their faith-- and Allah´s are the hosts of the heavens and the earth, and Allah is Knowing, Wise--

Pickthall
He it is Who sent down peace of reassurance into the hearts of the believers that they might add faith unto their faith. Allah´s are the hosts of the heavens and the earth, and Allah is ever Knower, Wise -

محمد جالندھری
وہی تو ہے جس نے مومنوں کے دلوں پر تسلی نازل فرمائی تاکہ ان کے ایمان کے ساتھ اور ایمان بڑھے۔ اور آسمانوں اور زمین کے لشکر (سب) خدا ہی کے ہیں۔ اور خدا جاننے والا (اور) حکمت والا ہے