You must not sit until you offer the 2 rakat for tahiyatul masjid. If you pray two Rakah sunnah, this suffices as tahiyatul masjid becomes embedded in it.

I went to the masjid near our house to pray for dhuhr, when a get in the masjid,the azan is already done, and i want to pray sunnat. will i still pray the 2 rakaah sunnat that is required before sitting down or i will not and pray the 4 rakaat instead?

Prayer | June 15, 2017 2:34 am
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I want to ask that suppose if I missed one rakah of zuhr prayer in congregation then should i do rafayadain after second rakah of mine or second rakah of imam?
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I heard a Hadith in which it was said that Witr should be the last Prayer of the day. If it is so, should we stop praying 2 Units of Nafal at the end of Isha?