عن سيدنا أبي حميد رضي الله عنه أو سيدنا أبي أسيد الأنصاري رضي الله عنه قال: قال رسول الله صلى الله عليه وسلم: إذا دخل أحدكم المسجد فليسلم على النبي صلى الله عليه وسلم ثم ليقل: اللهم افتح لي أبواب رحمتك فإذا خرج فليقل: اللهم إني أسألك من فضلك (سنن أبي داود، الرقم: ٤٦٥، وسكت عليه هو والمنذري في مختصره، الرقم: ٤٦٥)
Hazrat Abu Humaid or Abu Usaid (radhiyallahu ‘anhuma) reports that Hazrat Rasulullah (sallallahu ‘alaihi wasallam) said, “Whenever anyone enters the musjid, he should recite Durood upon Rasulullah (sallallahu ‘alaihi wasallam) and then recite the following dua:
اَللّٰهُمَّ افْتَحْ لِيْ أَبْوَابَ رَحْمَتِك
O Allah Ta’ala, open for me the doors of Your mercy.
And when he leaves the musjid, he should recite the following dua:
اَللّٰهُمَّ إِنِّيْ أَسْأَلُكَ مِنْ فَضْلِكَ
O Allah, I ask You for Your bounties.
Writing ‘sallallahu ‘alaihi wasallam’ in Full
Hazrat Ubaidullaah bin Umar Qawaareeri (rahimahullah) said:
I had a close companion who was a scribe by profession. After his demise, I once saw him in a dream and enquired from him as to how Allah Ta’ala had dealt with him. He replied that Allah Ta’ala had forgiven him.
When I asked him the reason, he said, “It was my habit during my lifetime that whenever I wrote the blessed name of Nabi (sallallahu ‘alaihi wasallam), I always wrote ‘(sallallahu ‘alaihi wasallam)’ after the mubaarak name. Allah F loved this action so much that He has granted me bounties which no eye has ever seen, nor has any ear ever heard, and neither did the thought of such boons and bounties ever cross the mind of any person.”