Is this Hadith authentic?
Sayyiduna Abu Sa’id (radiyallahu ‘anhu) reports that Rasulullah (sallallahu ‘alayhi wa sallam) said:
“Whoever performs wudu and says: ‘Subhanakallahumma wa bihamdika ash-hadu al la ilaha illa anta astaghfiruka wa atubu ilayka’
(O Allah, You are pure and all praises are due to You. I bear witness that there is no god besides You. I seek forgiveness from You and I repent to You)
These words will be written on a paper and then sealed. The seal will not be broken till the day of Judgement.