Quran 7:170 from Surah Al-A'raaf on Divine Marvels.
وَٱلَّذِينَ يُمَسِّكُونَ بِٱلۡكِتَٰبِ وَأَقَامُواْ ٱلصَّلَوٰةَ إِنَّا لَا نُضِيعُ أَجۡرَ ٱلۡمُصۡلِحِينَ
English translation: And those who hold fast to the Book and establish the prayer indeed We (will) not [We] let go waste (the) reward (of) the reformers
Transliteration: wa-alladhina yumassikuna bil-kitabi wa-aqamu al-salata inna la nudi'u ajra al-mus'lihina