Musnad Ahmad 309
It was narrated from Ibn ʼUmar that ‘Umar (رضي الله عنه) - and I think he attributed it to the Prophet (ﷺ) said:
`Allah, may He be blessed and exalted - says: `Whoever humbles himself before Me like that” – and he turned his palm down towards the ground like that, very close to the ground - ` I will raise him in status like this` - and he turned his palm up towards the heaven and raised his hand like that.
حَدَّثَنَا يَزِيدُ، أَنْبَأَنَا عَاصِمُ بْنُ مُحَمَّدٍ، عَنْ أَبِيهِ، عَنِ ابْنِ عُمَرَ، عَنْ عُمَرَ، رَضِيَ اللَّهُ عَنْهُ قَالَ لَا أَعْلَمُهُ إِلَّا رَفَعَهُ قَالَ يَقُولُ اللَّهُ تَبَارَكَ وَتَعَالَى مَنْ تَوَاضَعَ لِي هَكَذَا وَجَعَلَ يَزِيدُ بَاطِنَ كَفِّهِ إِلَى الْأَرْضِ وَأَدْنَاهَا إِلَى الْأَرْضِ رَفَعْتُهُ هَكَذَا وَجَعَلَ بَاطِنَ كَفِّهِ إِلَى السَّمَاءِ وَرَفَعَهَا نَحْوَ السَّمَاءِ‏.‏