Ref. No. 41/974
In the name of Allah the most Gracious the most Merciful
The answer to your question is as follows:
We found Ahadith about prayers in Masjid e Nabawi which are hereunder:
* The reward of a prayer offered in Masjid Nabawi is equal to 1000 prayers in any other masjid except Masjid Al-Haram. (Muslim Hadith No. 1394)
* A person who offers forty prayers consecutively in my Masjid (Masjid Nabawi), without missing a prayer in between, will secure immunity from the fire of Hell, and from other punishments and also from hypocrisy. (Musnad e Ahmad – Musnad Anas Bin Malik, Hadith No. 12583)
And Allah knows best
Darul Ifta
Darul Uloom Waqf Deoband