1. 'Abdullah bin 'Amr bin Al-'As (RadiyAllahu Anhuma) reported: Messenger of Allah (Sallellahu Alaihi Wa Sallam) said:
"Successful is the one who enters the fold of Islam and is provided with sustenance which is sufficient for his day's needs, and Allah makes him content with what He has bestowed upon him.''
The real success of a man will be measured by his being blessed with Divine mercy and forgiveness in the Hereafter, and this is contingent on Islam alone. If he lacks the wealth of Islam, all the worldly possessions will not ensure his success in the next world. This Hadith tells us that richness is not to be defined in terms of a lot of belongings, and that the real richness is gauged by the contentment of the soul.
2. Fadalah bin 'Ubaid Al-Ansari (RadiyAllahu Anhu) reported: I heard Messenger of Allah (Sallellahu Alaihi Wa Sallam) say:
"Happiness is due to him who is guided to Islam and possesses provision that suffices him for his day and remains content.''
The word Tuba (translated here as happiness) is given to Jannah. Some Ahadith say that it is the name of a heavenly tree as well. Lexically, however, it means greeting and good tiding. The sense of this Hadith is analogous to that of the previous one.