Aslam

Every sincere Tauba is accepted. Those who observe with the inner light and whose souls are bright know that every soul has ■been created pure and clean and every child has been created on natural attribute. But men have been polluting its purity and cleanliness with dirt and making it black with sins. They also know that these impurities on soul can be burnt by the fire of repentance and the light of good deeds can remove the darkness of dirts gathered on soul. The darkness of sins has got no power to live with the light of good deeds as the darkness of night can not live with the light of day or as the dirts can not remain, if a cloth is cleaned with soap. So God does not accept a soul polluted with sins. As a cloth being polluted by foul act can be cleansed with soap and warm water, so a soul being polluted with passion and greed can be purified of tears of eyes and fire of repentance.
As a clean doth is acceptable, so a pure and clean soul is acceptable to God. So your soul should be cleansed and made pure. God says : The soul of one gets success^which he has made pure.' One soul can recognise another soul. He who does not know his soul, how can he know anothe| soul? He who thinks that Tauba although sincere will not be accepted, is like a man who thinks that darkness will not go even if the sunrises or dirt will not go even if a cloth is washed by soap. But soap is not alone sufficient to remove dirt if it is gathered, layer over layer; on a thing. Similar is the condition of sin if congested in soul. If one says by word of mouth "I repented", his word is like the word of a washer man who says by his tongue; I have washed this cloth!
Such is the condition of a soul if no sincere repentance is made.

20 TAUBA Vol-IV

This is sufficient for acceptance of Tauba for a man with deep insight. There are proofs of the Quran and Hadis to this effect.