Palestinian sources said that Dahlan arrived at the West Bank city of Jericho from Jordan, escorted by six vehicles.
Dahlan said that he decided to return to the Palestinian territories to appeal against the decision which sacked him from the Fatah Central Committee.
Dahlan said he considers the decision to sack him was illegal and violated the Palestinian basic law.
In mid-June, Fatah decided to fire Dahlan after differences with Palestinian President Mahmoud Abbas and to send Dahlan's case to the attorney general for further investigations over charges of financial corruption and murder allegations.
Tensions between Dahlan and Abbas rose late last year after Dahlan openly criticized the Palestinian president and his family's business dealings.
According to media reports, Dahlan has warned that the ailing Abbas was incapable of leading either the Palestinian Authority or Fatah amid pressure from Israel and the United States.
The reports said that Dahlan urged other senior Fatah Central Committee members to undermine Abbas.
Jamal Mhaisen, who is also a member of Fatah’s Central Committee, said Dahlan is returning to his home country “like any ordinary Palestinian citizen.”
According to Mhaisen, Dahlan “has the right to return, and Fatah does not have anything against this. So far we have not referred his file to the Palestinian Public Prosecutor.”
Before Dahlan’s dismissal, he was considered as the highest-flying candidate to succeed Abbas. Dahlan is also seen as the most prominent figure in the Fatah's Central Committee following Fatah’s Sixth Convention held in Bethlehem on August 2009.
Dahlan, however, is hounded by by campaign mounted against him by Hamas and other media outlets associated with it.
