اَلسَلامُ عَلَيْكُم وَرَحْمَةُ اَللهِ وَبَرَكاتُهُ I heard somewhere that if were not able to pray sunnah of fajr we can make Intention for that and pray that in dhur, and same with magrib and isha. Is this true. How can we combine both?

Ustadh AbdulAziz al-Haqqan
I am confused can u clarify more?