25 Pa. Stat. § 3313
Upon the petition in writing of at least one hundred registered electors of the Commonwealth, accompanied by the affidavit, taken and subscribed by at least twenty of the petitioners, before some person having authority to administer oaths, that the facts set forth are true to the best of their knowledge and belief, and a certificate from the registration commission of the county or counties where the petitioners reside, setting forth that they are all registered electors, being presented to the presiding officer of the Senate within ten days from the organization of the General Assembly next succeeding the election complained of, he shall immediately give information thereof to both houses. Such petition after being read in each house, shall be laid on the table without any question taken thereon, until the two houses shall proceed thereon in the following manner.
25 P.S. § 3313