Seeking Divine pardon is an antidote for the poisoning of human soul by sinning. Every sin against Allah, however heinous it may be, is forgiven if one seeks Divine pardon for it. Whenever a sin great or small is committed, it should be atoned for by seeking pardon, and even when no sin has been apparently committed, one should seek Divine forgiveness. Every Muslim knows that the eternally blessed Prophet Muhammad was free of all sin, but even then he has said that “I beg for Allah’s forgiveness seventy times or more every day. (Bukhari)
Allah likes his bondsmen to pray to Him. If a man, however beneficent he may be, is again and again asked for anything, he sooner or later loses his patience and becomes angry. But Allah, on the contrary, is, pleased the more his bondsmen ask him.
Hadith tells as that Allah is displeased with one who does not ask him for anything in prayer.