There is the great importance of the simple yet powerful dua (supplication) – Istighfar i.e., saying “Astaghfirullah” (I seek forgiveness of Allah). Prophet Muhammad (peace be upon him) recited this at least 100 times a day. The benefits and virtues of reciting the simple beautiful supplication are enormous:
Istighfar (Astaghfirullah) is the gateway of relief and happiness. Whenever you are in distress start reciting it and Insha Allah it will take you out of your anxiety and will put you in a peaceful situation and will give you happiness.
1) Istighfar removes anxiety and duas are answered.
2) Istighfar opens the door of sustenance.
3) Istighfar opens the door of mercy.
4) Istighfar opens the door of knowledge.
5) Istighfar is also gateway of productivity.
6) Ibn Abbas (May Allah be pleased with them) said: The Messenger of Allah (peace be upon him) said,
“If anyone constantly seeks pardon (from Allah), Allah will appoint for him a way out of every distress and a relief from every anxiety, and will provide sustenance for him from where he expects not.” [Abu Dawud].
Importance of seeking forgiveness of Allah from the Quran:
One of the 99 Names of Allah is Al-Ghaffaar , The Great Forgiver The Forgiver, the One who forgives the sins of His slaves time and time again. There are numerous verses in the Quran about the importance of asking for forgiveness of Allah. Here are few of them:
And (commanding you): “Seek the forgiveness of your Lord, and turn to Him in repentance, that He may grant you good enjoyment, for a term appointed, and bestow His abounding Grace to every owner of grace (i.e. the one who helps and serves needy and deserving, physically and with his wealth, and even with good words). But if you turn away, then I fear for you the torment of a Great Day (i.e. the Day of Resurrection). [Hud 11:3]
Declare (O Muhammad peace be upon him) to My slaves, that truly, I am the Oft-Forgiving, the Most-Merciful. [Al-Hijr 15:49]
Then, verily! Your Lord for those who do evil (commit sins and are disobedient to Allâh) in ignorance and afterward repent and do righteous deeds, verily, your Lord thereafter, (to such) is Oft-Forgiving, Most Merciful. [An-Nahl 16:119]
Your Lord knows best what is in your inner-selves. If you are righteous, then, verily, He is Ever Most Forgiving to those who turn unto Him again and again in obedience, and in repentance. [Al-Isra 17:25]
And verily, I am indeed Forgiving to him who repents, believes (in My Oneness, and associates none in worship with Me) and does righteous good deeds, and then remains constant in doing them, (till his death). [Ta-Ha 20:82]
And say (O Muhammad peace be upon him): “My Lord! Forgive and have mercy, for You are the Best of those who show mercy!” [Al-Mumenoon 23:118]