´Abu Hurairah narrated that :` the Prophet said: "Do not precede the month with a day nor with two days, unless that fast falls on a day that one of you would have (normally) fasted. Fast with its sighting and break fast with its sighting, and if it is cloudy, then count for thirty days, and then break (the fast)."
Hadith Referenceسنن ترمذي / كتاب الصيام عن رسول الله صلى الله عليه وسلم / 684
Hadith Gradingالألبانی:صحيح، ابن ماجة (1650 و 1655)
´Abu Hurairah narrated that :` the Messenger of Allah said: "Do no precede the month of Ramadan by fasting a day or two before it, unless it is the case of a man who normally performs some fast, then let him fast it."
Hadith Referenceسنن ترمذي / كتاب الصيام عن رسول الله صلى الله عليه وسلم / 685
Hadith Gradingالألبانی:صحيح، ابن ماجة (1650)
Hadith Takhrij«انظر ما قبلہ ( تحفة الأشراف : 15406) (صحیح)»