Tendulkar braved fever to hit 122 while captain Jaffer smashed 301 to help Mumbai to a mammoth 637 for six on the second day.
Tendulkar, who faced 166 balls in 178 minutes for his knock which was studded with nine fours and five huge sixes, retired perhaps not being able to withstand the heat in the middle due to running temperature in Chennai on the second day of their four-day Ranji Trophy cricket on Monday.
The batting maestro stitched a 226-run stand off 410 balls with Jaffer.
At close, Abhishek Nayar (29) and Ramesh Powar (8) were at the crease.
Highlights of Day 2
Jaffer amassed his second triple ton (301, 459b, 635m, 27x4) both against Saurashtra this season. After a fabulous innings of 635 minutes at the crease, Jaffer was out to a tired looking shot when he played Rakesh Dhruve towards on-side on the toss of the ball but gave a leading edge in offering a simple return catch.
Jaffer continued to be in his elements and in the company of Tendulkar, who showed aggression from the word go and kept the board ticking at a faster pace.
It was an emotional walk to the middle for Tendulkar, who opted to assist his state in their hunt for the 38th Ranji title.
Coming on to the crease at the fall of Ajinkya Rahane (85, 193b, 288m, 4x4, 2x6), Tendulkar enthralled the sparse crowd using his bat as a magical wand and the manner in which he chose the gaps for driving was immaculate.
