السَّلاَمُ عَلَيْكُمْ وَرَحْمَةُ اللهِ وَبَرَكَاتُهُ أَحْسَنَ اللهُ إِلَيْكُمْ Ya Shaykh. Can one combine sitting and standing in salah if there is no clean place for him to do sujud on. Like standing for Fatihah and ruku and then doing sujud and tashahud sitting on a chair?

Ustadh AbdulAziz al-Haqqan

How? Find a place even if behind the row alone as u don't have another choice.