Should the alliance petition be filed today, the inauguration will be guided by Section 93 (3) of the Constitution which speaks of the court having to determine whether the President-elect has been elected correctly and if so, after the judgment has been passed, inauguration has to happen within 48 hours. "We call on Zimbabwe's leaders to guarantee Mr. Biti's physical safety and ensure his constitutional and human rights are respected, consistent with the rule of law and Zimbabwe's worldwide obligations and commitments", she said.
The court challenge automatically cancels Mnangagwa's inaugartaion which had been scheduled to go ahead on Sunday the 12th of August.
The court's decision on the matter is final.
His party must lodge its appeal at the Constitutional Court by 1400 GMT, when the court closes.
Mr Chamisa wants the court to declare him the victor or call a fresh election, it is reported.
"We've managed to place before the court forms that show the (results) figures were erased", MDC party lawyer Thabani Mpofu told reporters.
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The first date isn't set just yet, and if the two sides decide to consummate the relationship remains to be seen. That didn't work out to well for me. "I'll take all the time I need to show who I am".
Mr Chamisa wants the court to declare him the victor or call a fresh election, his lawyer told Reuters news agency on Friday.
"In the alternative, we seek that there be another election which complies with the dictates of the law", Mpofu said.
In his application court challenge, Chamisa cited Mnangagwa as the first respondent, ZEC, and all other 22 presidential contestants as respondents as well. The opposition said the result was rigged.
Britain's Minister for Africa Harriett Baldwin said in a statement she had spoken to Chamisa and Zimbabwe's Foreign Minister Sibusiso Moyo to urge calm while the election challenge was being considered by the court.
The results of the presidential election were announced on Friday last week by the Zimbabwe Electoral Commission.
Two days after the vote, six people were killed in an army crackdown on protests against the victory by Mnangagwa's ruling ZANU-PF party.