Keep your promises and fulfill your commitments no matter what obstacles you may face along the way.

The hadith reported by Ibn 'Abbas states that the Prophet Muhammad (peace be upon him) promised to fast on the ninth of Muharram if he was still alive. This hadith teaches us about the importance of keeping our promises and fulfilling our commitments, even when it comes to something as small as fasting. It also shows us how devoted and dedicated the Prophet Muhammad was in his worship, as he made a promise to fast even though it may have been difficult for him at that time. Furthermore, this hadith encourages us to make similar commitments in our own lives and strive towards fulfilling them no matter what obstacles we may face along the way.