In The Name of Allaah, The Most Merciful, The Bestower of Mercy.
All praise is due to Allah Who fed us, provided us drink, sufficed us and provided us with shelter, for how many people there is none to suffice and none to provide shelter. [Saheeh Muslim Number 2715]
Shaikh Abdur-Razzaaq Al-Badr [hafidhahullaah] said: In this supplication, there is a reminder for the Muslim before he goes to bed regarding the end of the day and the hours that have elapsed, in which Allaah provided him with food, drink and shelter, whilst there are a number of people who could not find food as a source of nourishment or drink to quench their thirst, or clothing to clothed themselves, or a dwelling place. So whoever Allaah blessed with food and drink, sufficed him, then it is obligated on him to acknowledge the blessings of Allaah and consider it as something that is great indeed. That is because being grateful for the blessings Allaah has given you is a means to retaining and increasing those blessings. Allaah (The Most High) said:
[وَإِذْ تَأَذَّنَ رَبُّكُمْ لَئِنْ شَكَرْتُمْ لَأَزِيدَنَّكُمْ ۖ وَلَئِنْ كَفَرْتُمْ إِنَّ عَذَابِي لَشَدِيدٌ -And (remember) when your Lord proclaimed: “If you give thanks (by accepting Faith and worshipping none but Allah), I will give you more (of My Blessings), but if you are thankless (i.e. disbelievers), verily! My Punishment is indeed severe]. [14:7]
[An Excerpt from Fiqhul Ad’iyah Wal-Adkaar’ page 79′ parts 3&4]