It is narrated from an Ansari companion (may Allah be pleased with him) that once some people mentioned before the Prophet Muhammad (peace and blessings be upon him) a slave woman from Banu Abdul Muttalib, saying that she spends the night in prayer and fasts during the day. The Prophet (peace and blessings be upon him) said: "But I sleep and I pray, I fast and I also leave fasting. So whoever follows my way is from me, and whoever turns away from my Sunnah is not from me. Every deed has a period of enthusiasm, which eventually comes to an end. So whoever’s enthusiasm ends in innovation has gone astray, and whoever’s enthusiasm ends in Sunnah has found guidance."
Hadith Referenceمسند احمد / مسند الأنصار رضي الله عنهم / 23474
Abdur Rahman bin Salamah Khuza'i (RA) narrates from his uncle that the Prophet Muhammad (peace be upon him) said to the people of the tribe of Aslam on the day of Ashura (10th Muharram): "Fast on this day." They said, "We have already eaten and drunk." The Prophet (peace be upon him) said, "Then do not eat or drink for the rest of the day."
Hadith Referenceمسند احمد / مسند الأنصار رضي الله عنهم / 23475
Hadith Gradingحکم دارالسلام:صحيح الغيره، وهذا إسناد ضعيف لجهالة عبدالرحمن بن سلمة
Hasna, who was a woman from Banu Sareem, narrates from her uncle that I heard the Noble Prophet (peace and blessings be upon him) saying: The Prophet will be in Paradise, the martyr will be in Paradise, newborn children will be in Paradise, and those children who were buried alive will also be in Paradise.
Hadith Referenceمسند احمد / مسند الأنصار رضي الله عنهم / 23476
Hadith Gradingحکم دارالسلام:إسناده ضعيف لجهالة حسناء بنت معاوية