The Zimbabwe Electoral Commission (ZEC) official in Harare, who asked not to be named, said there would be recounts of the votes for both presidential and parliamentary polls in constituencies where there had been allegations of poll abuse.
The MDC has a two-seat majority in the lower house of parliament after the election but the combined opposition tally totals 12 more than ZANU-PF.
The opposition has rejected both a recount and a run-off against Mugabe, accusing him of trying to rig his way out of defeat in the presidential election.
The opposition and Western powers accuse Mugabe of wrecking the economy of his once-prosperous nation where many people have been reduced to misery by hyper-inflation of more than 100,000 percent, shortages of food and fuel and 80 percent unemployment.
Pande, reading a summit communique, said SADC had urged both sides to accept the outcome of the elections.
MDC spokesman Nelson Chamisa told Reuters: "We have already said that we will not accept any recount because for us that is accepting rigged results. They had custody of the ballot boxes for two weeks and they must have stuffed them with their votes."
Zimbabwe's High Court was due to rule on Monday on a MDC application to force the electoral commission to release the presidential outcome.
Zambian President Levy Mwanawasa, SADC's current chairman, called the summit because of regional concern over the impasse.
"SADC can no longer continue to stand by and do nothing when one of its members is experiencing political and economic difficulties," he said in an opening speech.
Mbeki, who has consistently favoured a softer line with Mugabe, said the election process was proceeding normally.
"I wouldn't describe that as a crisis," Mbeki told reporters after his meeting Mugabe in Harare.
"We have to wait for ZEC to release (the results)," said Mbeki, echoing Mugabe's own stance on the unusually long delay.
Mugabe dismissed a remark by Prime Minister Gordon Brown that the world was losing patience. "If Brown is the world, sure, he will lose patience. I know Brown as a little tiny dot on this planet," Mugabe said.
