These are some of my favourite lines from some of my favourite songs. Just felt like sharing it with all you guys:

“Koi rishta nahi raha phir bhi,
Ek tasveer laazmi si hai”

“Tere bina zindagi se shikwa toh nahi,
Tere bina zindagi bhi lekin zindagi toh nahi”

“Humne dekhi hai un aankhon ki mehekti khushbu,
Haath se chuke inhe rishton ka ilzaam na do,
Sirf ehsaas hai ye ruh se mehsoos karo,
Pyaar ko pyaar hi rehne do koi naam na do”

“Hai tujhe bhi ijaazat,
Khud se kar le mohabbat”

“Mohabbat mein nahi hai farq jeene aur marne ka,
Usi ko dekh kar jeete hai jis kaafir pe dum nikle”

“Aa chalke tujhe main leke chalu ek aise gagan ke tale,
Jaha gum bhi na ho, aasu bhi na ho, bas pyaar hi pyaar pale”

“Jo kahi gayi hai mujhse who zamana keh raha hai,
Ke fasana ban gayi hai meri baat badte badte”

“Bahut khoobsurat hai har baat lekin,
Agar dil bhi hota toh kya baat hoti”

“Ek sau solah chaand ki raatein,
Ek tumhaare kaandhe ka til,
Geeli mehendi ki khushbu,
Jhooth mooth ke shikwe kuch,
Jhooth mooth ke waade bhi sab yaad kara do,
Sab bhijwa do,
Mera who saamaan louta do”

“Yeh daulat bhi lelo, ye shauharat bhi le lo,
Bhale cheen lo mujhse meri jawaani,
Magar mujhko lauta do bachpan ka saawan,
Woh kaagaz ki kashti, woh baarish ka paani”

“Jeene ke liye socha hi nahi dard sambhalane honge,
Muskuraoon toh muskurane ke karz utaarne honge,
Muskuraoon kabhi toh lagata hai,
Jaise honton pe karz rakhaa hai”

“Ye tera ghar ye mera ghar,
Kisi ko dekhna ho gar,
Toh pehle aake maang le,
Teri nazar meri nazar”

“Ban jaayenge zeher peete peete,
Ye ashq jo peeti ja rahi ho”

“Lag jaa gale ke phir ye hasi raat ho na ho,
Shaayad phir is janam mein mulaqat ho na ho”

“Aaj jaane ki zidd na karo,
Hai mar jaayenge, hum toh mit jaayenge,
Aisi baatein kiya na karo”

“Tum hi socho zara kyu na roke tumhe,
Jaan jaati hai jab uth ke jaate ho tum”

“Waqt ne kiya kya haseen sitam,
Tum rahe na tum,
Hum rahe na hum.
Bekaraar dil is tarah mile,
Jis tarah kabhi hum juda na the,
Tum bhi kho gaye,
Hum bhi kho gaye,
Ek raah par, chal ke do kadam”

“Bichad gaya har saathi dekar pal do pal ka saath,
Kisko fursat thaamega jo deewane ka haath,
Humko apna saaya tak aqsar bazaar mila,
Humne toh jab kaliyaan maangi, kaaton ka haar mila”

"Raat haseen, ye chaand haseen, tu sabse haseen mere dilbar,
Aur tujhse haseen tera pyaar"

This is all I could remember for now. All of you are welcome to add to the content. Just leave your songs in the comments and I'll add them to this post.