Saudi Arabian Crown Prince Mohammed bin Salman is visiting Cairo on Tuesday to discuss trade and investment as well as the crises in Lebanon and Gaza with Egypt’s President Abdel Fattah el-Sisi, Egyptian diplomatic sources said. The visit comes amid speculation about potential Saudi investments in Egypt, which has received a major influx of external financing this year including a record $35 billion deal with UAE sovereign fund ADQ. The crown prince, known as MbS, made his last official visit to Egypt in 2022. Saudi Arabia, which has provided financial support to Sisi’s Egypt in the past, late…