Imām Ja’far ibn Muhammad al-Sādiq (alayhi salām) said:

“On Judgment Day, Allāh the Almighty shall raise the days, and Friday shall be raised as leader of all of them like a bride, possessing all perfections and beauty, presented to the owner of religion and wealth. It shall stop at the door of Paradise with other days behind it, and will intercede for all those who sent more blessings on Hazrat Muhammad (salla llāhu ʿalayhi waalehe wasallam), and his holy progeny (alayhimus salām) in it.”

Ibne Sinan says, ‘I said, How much is considered as more in it? And in which times of Friday is it best to send blessings and salutations?’

Imām (alayhi salām) said, ‘Hundred times. And the best time is after Asr.’

He asked, ‘And how should I say it?’

Imām (alayhi salām) replied, ‘Say a hundred times:

اللَّهُمَّ صَلِّ عَلَى مُحَمَّدٍ وآلِ مُحَمَّدٍ وعَجِّلْ فَرَجَهُمْ
(Reference: Mikyalul Makarim, vol 2, page 59)

May Allah grant us taufiq to recite maximum Salawats everyday and specially on Fridays and count us among the servants of Ahlebayt (asws). May Allah make early the advent of Imam Al-Mahdi (atfs) and bless us to be among his followers.