(4) باب الشَّهْرُ يَكُونُ تِسْعًا وَعِشْرِينَ
Muhammad b. Sa'd reported on the authority of his father (Sa'd b. Abi Waqqas (Allah be pleased with him) that the Messenger of Allah (ﷺ) had said:
Tho month is thus and thus, and thus, i. e. ten, ten and nine.
Reference: Sahih Muslim 1086 b
In-book reference: Book 13, Hadith 32
USC-MSA web (English) reference(deprecated numbering scheme): Book 6, Hadith 2390