Unauthentic narration regarding qaza namaaz
Q: I saw a picture in which there was a hadeeth. The hadeeth mentioned that if a person has many qaza namaaz and he does not know how many qaza namaaz he has then he should perform a 4 rakat nafal namaaz with 1 salam on the last jumuah in Ramadhan. He should just read surah fatiha then 7 times ayatul kursi and 15 times surah kothar. All the qaza namaaz will be done after this 4 rakat nafal namaaz. Is it true?