The journey [to Mecca] took Musa and his companions through the Sahara desert and Egypt, reaching Cairo, where the emperor would generously splash his cash – or

The journey [to Mecca] took Musa and his companions through the Sahara desert and Egypt, reaching Cairo, where the emperor would generously splash his cash – or gold, in this case – in the capital. He spent so much gold that he destabilised the local economy and caused mass inflation for 10 years after his departure. If only they had speculators so he could have made an extra killing shorting the markets, then he'd really topple Musk for all time ;P ;) xx ;p