As salamu alaikum wa rahmatullahi wabrakatuhu
I hope these are correct. I have tried my best by the grace of Almighty Allah.
87) This was said by Musa (pbuh) when he watered the flocks of 2 women. Surah Al Qasas, Chapter 28, verse 24.
" So he watered their flock for them. THen he turned aside into the shade and said: My Lord, to what good you send down to me I am in need. "
88) Its in Surah Al Araf, Chapter 7, Verse 43
The believers, they say: "Praise God who guided us to this. We would not have found our way had God not guided us. verily the Messengers of our Lord did bring the Truth. And it is cried unto them. You inherit it for what you used to do"
89) I will find soon Insha Allah
90) Here its being spoken of the people who are inside the cave. Surah Al Kahf, Chapter 18, Verse 20.
"If they find out about you, they will stone you or return you to their religion."
I will find the answer to question number89 soon Insha Allah. Quite tricky one.
wa/salam