Having served a prison sentence and a subsequent ban, it was the duo's first match in five years and four months since they were caught for spot-fixing during the 2010 series against England.
Former national captain Butt scored an attractive 135 while swing bowler Asif looked in good rhythm taking 2/23 in 6 overs with their team Water and Power Development Authority (WAPDA) defeating FATA region in a match played at Hyderabad (Sind).
"It is an incredible feeling to score a century after such a long time," Butt told PTI over telephone from Hyderabad.
"I am delighted that I could make such a strong return after such a long lay-off. I credit Waqar and Yousuf for this. I was motivated by the words of the Pakistan coach and Yousuf helped me out in the nets with some useful tips," Butt said.
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"It is never easy playing in a competitive match after so many years but since I kept training hard and had regular nets since September, I was mentally and physically prepared for the challenge when this day came," he added.
Butt also thanked the Chairman of WAPDA and the team management and players for their support.
"WAPDA signed us on when our future was uncertain and they backed us. I am happy for Aamir he has gone to New Zealand and I wish him and the team the best," he stated.
(REOPENS FGN 10)
Pakistan's head coach Waqar Younis told