بسم الله الرحمن الرحیم
قُلْ يَا عِبَادِيَ الَّذِينَ أَسْرَفُوا عَلَىٰ أَنفُسِهِمْ لَا تَقْنَطُوا مِن رَّحْمَةِ اللَّـهِ ۚ إِنَّ اللَّـهَ يَغْفِرُ الذُّنُوبَ جَمِيعًا ۚ إِنَّهُ هُوَ الْغَفُورُ الرَّحِيمُ
Say: "O my Servants who have transgressed against their souls! Despair not of the Mercy of Allah: for Allah forgives all sins: for He is Oft-Forgiving, ...
Of course it is allowed.
Complaining to Allah (respectfully) is a part of dua.
For instance, Musa (AS) and his brother when they were told to go to the Pharoah complained about the danger:
They said, ‘Lord, we fear he will do us great harm or exceed all bounds.’ (20:45)
Allah responds to them and reassures them:
He said, ‘Do not be afraid, I am with ...
Allah says in the Qur'an:
“If you avoid great sins which you are forbidden, We will expiate from you your (small) sins and cause you to enter an honorable (place of) entering. (Surah 4, Verse 31).
Therefore, a mukallaf must know which sins are great, so that he/ she desists from them. In this way, Allah, in His mercy and according to His promise, will ...
All praise and thanks are due to Allah, the Lord of the worlds. We cannot find words to praise Him, as He only sees fit how laudation should be addressed to Him. We seek refuge in Allah from the evils within ourselves and the evils of our bad deeds. Whosoever Allah guides will never be led astray, and whosoever He leads astray will never find guidance. ...