Well, the Hijri date 13 Safar 1355 corresponds to the Gregorian date Monday, 4 May 1936. This date lies in the second month of the Hijri year 1355 AH, which is Safar of 1355 AH. Both this Hijri and Gregorian date occur on the single day that is Monday without any doubt. The Arabic date 1355/02/13 is calculated using the Umm Al-Qura calendar and the sighting of the moon. One thing to remember is that this Arabic date may occur on different Gregorian date depending upon the region and country and obviously the moon.
If you are still not sure about the date then you can use our Arabic date converter.
The following is the conversion of the Gregorian date 4 May 1936 to its equivalent Arabic date.
The following is the conversion of the Arabic date 13 Safar 1355 AH to its equivalent Gregorian date.
بِسْمِ ٱللَّهِ ٱلرَّحْمَٰنِ ٱلرَّحِيمِ إِذَا وَقَعَتِ ٱلْوَاقِعَةُ
When the event befalleth -
Surah Al-Waaqia(56:1)
Sahih al-Bukhari
Manumission of Slaves
Chapter: Manumission of a Mushrik
Narrated Hisham:
My father told me that Hakim bin Hizam manumitted one-hundred slaves in the Pre-Islamic period of ignorance and slaughtered one-hundred camels (and distributed them in charity). When he embraced Islam he again slaughtered one-hundred camels and manumitted one-hundred slaves. Hakim said, "I asked Allah's Messenger (ﷺ), 'O Allah's Messenger (ﷺ)! What do you think about some good deeds I used to practice in the Pre-Islamic period of ignorance regarding them as deeds of righteousness?' Allah's Apostle said, "You have embraced Islam along with all those good deeds you did."
Sahih al-Bukhari 2538