Musharraf has been under house arrest at his plush villa on the edge of the Pakistani capital since April over a string of cases dating back to his 1999-2008 rule.
The Supreme Court on Wednesday granted him bail over the death of a rebel leader, a move that could have seen him freed once release procedures were completed.
He had already been granted bail in two other major cases against him, including one relating to the assassination of former prime ministers.
Friday's ruling means the 70-year-old must remain at his villa, which has been declared a "sub-jail", for at least two more weeks.
"The court remanded Musharraf for 14 days. The next date of hearing has been fixed for October 25," a court official told AFP.
Musharraf's lawyer Afshan Adil confirmed the details of the order.
There have been rumours that if freed, Musharraf would leave the country and not return.