Adding more words to the dua in jalsah in salaah
Q: I recite dua in jalsah (sitting between 2 sajdahs) as per hadith "Allahum magfirli warhamni wajburni warfaani wahdini wa aafini warzuqni". I like to add these words to this dua "wa aauzu bika min kulli balaa id-duniya wa azaabil aakhirah".
I would like to know if adding these words in the dua is permissible or not?