Q- Is this Hadith authentic?“If someone recites Surah Ikhlas fifteen (15) times daily, then he will cross the Sirat (pul sirat) bridge with the speed of lightening”?
Have not come across this Hadith. The Muhaddithun have declared a different, longer version a fabrication. (Refer: Tanzihush Shari’ah, vol. 2 pg. 85)
And Allah Ta’ala Knows best.
https://hadithanswers.com/reciting-surah-ikhlas-to-cross-the-sirat-bridge-easily/