Is this Hadith authentic?
ما من رجل يذنب ذنبا ثم يقوم فيتطهر ثم يصلي ثم يستغفر الله إلا غفر الله له ثم قرأ هذه الآية والذين إذا فعلوا فاحشة أو ظلموا أنفسهم ذكروا الله فاستغفروا لذنوبهم
Imam Tirmidhi (rahimahullah) has recorded this version of the Hadith. He has declared the Hadith sound (hasan).
(Sunan Tirmidhi, Hadith: 406 and 3006)
Also see here.
Sayyiduna ‘Ali (radiyallahu ‘anhu) relates that Sayyiduna Abu Bakr (radiyallahu ‘anhu) said: “I heard Rasulullah (sallallahu ‘alayhi wa sallam) say, ‘There is no person who commits a sin, then makes wudu, offers Salah and thereafter seeks Allah’s forgiveness except that Allah will forgive him. Then he recited this Verse, ‘Those who when they act indecently or wrong themselves they remember Allah and ask forgiveness for their sins (Surah Alu ‘Imran, Verse: 135).’”
And Allah Ta’ala Knows best.
Answered by: Moulana Suhail Motala
Approved by: Moulana Muhammad Abasoomar
This answer was collected from HadithAnswers.com. The answers were either answered or checked by Moulana Haroon Abasoomar (rahimahullah) who was a Shaykhul Hadith in South Africa, or by his son, Moulana Muhammad Abasoomer (hafizahullah), who is a Hadith specialist.