﴿ يَٰمَرْيَمُ ٱقْنُتِى لِرَبِّكِ وَٱسْجُدِى وَٱرْكَعِى مَعَ ٱلرَّٰكِعِينَ ﴾

“O Mary! Remain thou truly devout unto thy Sustainer, and prostrate thyself in worship, and bow down with those who bow down [before Him]."”

(O Mary! Be obedient to thy Lord) as a token of gratitude to Him; it is also said this means: prolong your prayer as a token of gratitude to your Lord, (prostrate thyself and bow) meaning: and do also prostrate and bow (with those who bow (in worship)) with the people of worship.