Glorify in bowing, supplicate in prostration

Bowing is for glorifying Allah; prostration is for earnest dua.

Narrated by Abdullah ibn Abbas

As for bowing, glorify the Lord in it. As for prostration, strive hard in supplication in it, for it is most likely that you will be answered.

Sahih Muslim 479

What this hadith teaches

Prostration is the best place in the prayer to ask Allah for your needs, in any language in voluntary prayers.

Reference and grade

Grade
Sahih (in Sahih Muslim)
Narrator
Abdullah ibn Abbas

The hadith in Arabic نص الحديث

لَمْ يَبْقَ مِنْ مُبَشِّرَاتِ النُّبُوَّةِ إِلاَّ الرُّؤْيَا الصَّالِحَةُ يَرَاهَا الْمُسْلِمُ أَوْ تُرَى لَهُ أَلاَ وَإِنِّي نُهِيتُ أَنْ أَقْرَأَ الْقُرْآنَ رَاكِعًا أَوْ سَاجِدًا فَأَمَّا الرُّكُوعُ فَعَظِّمُوا فِيهِ الرَّبَّ عَزَّ وَجَلَّ وَأَمَّا السُّجُودُ فَاجْتَهِدُوا فِي الدُّعَاءِ فَقَمِنٌ أَنْ يُسْتَجَابَ لَكُمْ

Arabic text of Sahih Muslim 479, as given on sunnah.com.