Well, the Hijri date 18 Ramadan 1491 corresponds to the Gregorian date Tuesday, 13 November 2068. This date lies in the ninth month of the Hijri year 1491 AH, which is Ramadan of 1491 AH. Both this Hijri and Gregorian date occur on the single day that is Tuesday without any doubt. The Arabic date 1491/09/18 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 13 November 2068 to its equivalent Arabic date.
The following is the conversion of the Arabic date 18 Ramadan 1491 AH to its equivalent Gregorian date.
ٱذْهَبْ إِلَىٰ فِرْعَوْنَ إِنَّهُۥ طَغَىٰ
(Saying:) Go thou unto Pharaoh - Lo! he hath rebelled -
Surah An-Naazi'aat(79:17)
Sahih al-Bukhari
Medicine
Chapter: To sniff the Indian and sea Qust (kind of incense)
Narrated Um Qais bint Mihsan:
I heard the Prophet (ﷺ) saying, "Treat with the Indian incense, for it has healing for seven diseases; it is to be sniffed by one having throat trouble, and to be put into one side of the mouth of one suffering from pleurisy." Once I went to Allah's Messenger (ﷺ) with a son of mine who would not eat any food, and the boy passed urine on him whereupon he asked for some water and sprinkled it over the place of urine.
Sahih al-Bukhari 5692, 5693