Mishkat al-MasabihChapter 7Hadith 1884
Full Sharh — Mishkat al-Masabih 1884
وَعَنْ أَبِي هُرَيْرَةَ رَضِيَ اللَّهُ عَنْهُ قَالَ: قَالَ رَسُولُ اللَّهِ صَلَّى اللَّهُ عَلَيْهِ وَسَلَّمَ: «أحصوا هِلَال شعْبَان لرمضان» . رَوَاهُ التِّرْمِذِيّ
English Translation
He reported God’s messenger as saying, "Calculate on the basis of the new moon of Sha'ban when Ramadan begins." Tirmidhi transmitted it.
Source
Mishkat al-Masabih(مشكاة المصابيح)
Fasting
Hadith Number
1884