What dua can we do to increase income [rizq]?

Answer:

یَا مُسَبِّبَ الْاَسْبَابْ
ya musabbibal asbaab

After Isha prayer, keep reciting it 500 times. Begin and end with 11 times Durood Sharif recitation. Whilst looking at the Qibla with ablution [wudu], with a bare head in such a place where nothing intervenes between the head and the sky to such an extent that there is not even a topi on the head.