This is not permissible and it is an innovation.

I heard many people say “SHUKRAN” after RABBANA WALAKAL HAMD upon rising from ruku´

Prayer | March 23, 2014 2:38 pm
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If we pray 2 raka sunnah at home before going to the Masjid for fajr prayer then should we pray tahiutal masjid ?
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Can I make Du’a Qunoot in the last Witr Raka’h in the night prayer during normal days(other than Ramadan), Is it in accordance with the Sunnah or Is the Qunoot Du’a to be made only in the Witr prayer in the month of Ramadan only?