Does seeking an answer to a supplication by virtue of one’s righteous deed (tawassul) to achieve some worldly goal detract from the reward of that deed?

Ya Hayyu Ya Qayyum: Authenticity and Meaning

Is her immense grief for her father contrary to sabr (patience)?

Fasting and Praying to Have Supplications Answered

Singling Out Ayat to Recite at Times of Hardship and Difficulty

What should I do about my supplication (du‘aa’), as I asked Allah to take from my lifespan and add it to my friend’s lifespan?

He prays for his Muslim brother in his absence, then tells him about that

The supplication of the Muslim is answered by granting him what he seeks or otherwise

Why does Islam urge us to offer supplication, when Allah, may He be exalted, may not respond to the one who calls upon Him?

Du`a for something the outcome of which has already been determined