The Prophet sallallaahu `alayhi wa sallam ( may Allaah exalt his mention ) said: “Themost superior way of seeking forgiveness from Allaah is to say: “Oh Allaah! Youare my Lord, None has the right to be worshipped except You, You created me and I am Your Servant and I abide by Your Covenant and Promise as best I can. I take refuge in You from the evil of which I have committed and I acknowledge Your Favour upon me and Iacknowledge my sin, so forgive me for verily None can forgive sin except You.” The Prophet sallallaahu `alayhi wa sallam ( may Allaah exalt his mention ) said: “If someone says it in the evening and then dies he will enter paradise or he will be among the people of paradise, and if he says it in the morning and then dies that day, the same applies to him.” [Al-Bukhaari and Muslim] The Prophet sallallaahu `alayhi wa sallam ( may Allaah exalt his mention ) also said: “Whoever says I am pleased with Allaah as my Lord, and Islam as my religion and Mohammad as a Prophet then paradise is obligatory for him (he will undoubtedly be admitted to paradise).” [Abu Daawood] In another narration, the Prophet sallallaahu `alayhi wa sallam ( may Allaah exalt his mention ) said: “If someone says so (the above supplication) three times in the morning and three times in the evening then it is his right on Allaah to please him on the Day of Judgement.” We advise the questioner to refer to the booklet ‘The Fortification of a Muslim’ (Hisnul Muslim) authored by Sa’eed Ibn Wahf Al-Qahtaani, may Allaah preserve him, and it is translated into English and Hindi and sold in the market. Indeed it is one of the best books about the supplications in all circumstances and on different occasions. It is very beneficial and the questioner and any reader will find what he is looking for regarding the supplications from the Qur’aan and the Sunnah.