It is narrated from Kathir bin Murrah (may Allah have mercy on him) that the Messenger of Allah (peace and blessings be upon him) said: "Indeed, your Lord turns towards His creation (with special favour) on the night of the fifteenth of Sha'ban and forgives them all, except one who associates partners with Allah or one who cuts off ties (with his Muslim brother, harbouring rancour)." The narrator says: The Messenger of Allah (peace and blessings be upon him) used to fast much in Sha'ban, to the extent that, out of honour and reverence for Ramadan, he (peace and blessings be upon him) would enter the month of Ramadan while fasting.
Hadith Referenceالمطالب العالية بزوائد المسانيد الثمانية / كتاب الصيام / 1087
Hadith Gradingمحدثین:إسناده صحيح
Hadith Takhrij«حکم الحدیث المطالب العالیہ محققاً تنسیق د. سعد بن ناصر بن عبد العزيز الشَّثري- مکتبہ شاملہ :رجاله ثقات. » «أخرجه مصنف عبد الرزاق برقم: 7923، وأخرجه مصنف ابن أبي شيبة برقم: 30479»