It is narrated from a Sheikh "who met the Prophet Muhammad (peace be upon him)" that once I set out on a journey with the Prophet Muhammad (peace be upon him). The Prophet passed by a man who was reciting Surah Al-Kafirun. The Prophet (peace be upon him) said, "He has become free from shirk." Then he saw another man who was reciting Surah Al-Ikhlas. The Prophet (peace be upon him) said, "By its blessing, he will be forgiven."
Hadith Referenceمسند احمد / مسند الأنصار رضي الله عنهم / 23206
Hadith Gradingحکم دارالسلام:حديث صحيح، وهذا إسناد ضعيف لضعف شريك، لكنه توبع