Well, the Hijri date 13 Ramadan 1373 corresponds to the Gregorian date Saturday, 15 May 1954. This date lies in the ninth month of the Hijri year 1373 AH, which is Ramadan of 1373 AH. Both this Hijri and Gregorian date occur on the single day that is Saturday without any doubt. The Arabic date 1373/09/13 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 15 May 1954 to its equivalent Arabic date.
The following is the conversion of the Arabic date 13 Ramadan 1373 AH to its equivalent Gregorian date.
قَدْ أَفْلَحَ مَن تَزَكَّىٰ
He is successful who groweth,
Surah Al-A'laa(87:14)
Sahih al-Bukhari
Prayer at Night (Tahajjud)
Chapter: To offer Salat-ud-Duha when not traveling
Narrated Anas bin Sirin:
I heard Anas bin Malik al-Ansari saying, "An Ansari man, who was very fat, said to the Prophet, 'I am unable to present myself for the prayer with you.' He prepared a meal for the Prophet (ﷺ) and invited him to his house. He washed one side of a mat with water and the Prophet (ﷺ) offered two Rakat on it." So and so, the son of so and so, the son of Al-Jarud asked Anas, "Did the Prophet (ﷺ) use to offer the Duha prayer?" Anas replied, "I never saw him praying (the Duha prayer) except on that day."
Sahih al-Bukhari 1179