The 27-year-old will return to training with the Cottagers on Thursday after a temporary five-match spell with the Tigers which was meant to last until the New Year
Martin Jol had told the Fulham Chronicle on Monday that he would not exercise the release clause unless "necessary", insisting that he was happy for the Englishman to stay as long as No.1 Mark Schwarzer remained fit.
However, the Premier League side have now announced that the 27-year-old will have his temporary spell at the KC Stadium, which was due to run until January 2, cut short, despite no mention of an injury to the Australian.
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Jol's other options between the sticks would be Hungarian 27-year-old Csaba Somogyi, who is yet to make a first-team appearance, and 22-year-old academy product Neil Etheridge, who has played just once for Fulham.
The move may come as a shock to the goalkeeper, who had expressed his happiness with the regular spot at the Tigers, while the Championship side had profited from his two clean sheets in five matches.
In a similar situation last season, Stockdale was recalled from a loan at Ipswich Town after Schwarzer suffered a prolonged period on the sidelines after a spinal injury in December.
The reserve keeper then produced an impressive string on performances for the west Londoners, though it was not enough to win him the permanent No.1 spot at Craven Cottage.