Darood Taj 1.18

For clearing heart, one should recite this Darood Taj after
Salaatul Fajr seven times, and again, three times after
Salaatul Asr and Salaatul ‘Ishaa respectively. For repelling
the Magic of Jinn and the Shayateen, and to be safe from an
epidemic and any other diseases, one should recite it eleven times.

For being safe from enemies and the Hasad [jealousy] of the
Haasideen and the oppression of oppressive rulers, and to be
rid of sadness and grief, he should recite this Darood Taj for
forty [40] nights after Salaatul ‘Ishaa forty one [41] times.