What is the ruling on a worshipper crying during prayer? And does praying for worldly matters invalidate the prayer?

Supplication (Du'a) is a great act of worship, and it is recommended to engage in it frequently, especially during prostration (sujud). Scholars have differed regarding the ruling on supplicating for worldly matters during prayer: The Hanbalis and Hanafis believe that it invalidates the prayer if the supplication resembles the speech of humans, citing the hadith: "Indeed, this prayer of ours is not befitting for any human speech." Whereas the Shafi'is and Malikis hold that it is permissible to supplicate for both worldly and otherworldly matters, and the prayer is not invalidated by it. As for weeping during prayer, there is a detailed explanation depending on its cause and state.