In a dream it indicates an increase in good.
It is also said that whoever sees that he is praising God the Exalted will obtain light and guidance in his religion.
Whoever sees as if he is praising God the Exalted will be granted a son. Praising God in a dream is wealth for the poor.
Whoever sees that he praised God the Exalted is a grateful man who will obtain an abundant, pleasant [the source reads "conduct"] blessing and two learned sons. The Exalted said:
قَالَ ٱلَّذِى عِندَهُۥ عِلْمٌ مِّنَ ٱلْكِتَـٰبِ أَنَا۠ ءَاتِيكَ بِهِۦ قَبْلَ أَن يَرْتَدَّ إِلَيْكَ طَرْفُكَ ۚ فَلَمَّا رَءَاهُ مُسْتَقِرًّا عِندَهُۥ قَالَ هَـٰذَا مِن فَضْلِ رَبِّى لِيَبْلُوَنِىٓ ءَأَشْكُرُ أَمْ أَكْفُرُ ۖ وَمَن شَكَرَ فَإِنَّمَا يَشْكُرُ لِنَفْسِهِۦ ۖ وَمَن كَفَرَ فَإِنَّ رَبِّى غَنِىٌّ كَرِيمٌ
“Said one who had knowledge from the Scripture, "I will bring it to you before your glance returns to you." And when [Solomon] saw it placed before him, he said, "This is from the favor of my Lord to test me whether I will be grateful or ungrateful. And whoever is grateful - his gratitude is only for [the benefit of] himself. And whoever is ungrateful - then indeed, my Lord is Free of need and Generous."”
Quran 27:40 · Saheeh International
And the saying of the Exalted:
ٱلْحَمْدُ لِلَّهِ ٱلَّذِى وَهَبَ لِى عَلَى ٱلْكِبَرِ إِسْمَـٰعِيلَ وَإِسْحَـٰقَ ۚ إِنَّ رَبِّى لَسَمِيعُ ٱلدُّعَآءِ
“Praise to Allāh, who has granted to me in old age Ishmael and Isaac. Indeed, my Lord is the Hearer of supplication.”
Quran 14:39 · Saheeh International