Prince Mohammed is expected to arrive in Pakistan this week, although an exact date of his arrival has not yet been disclosed.
Mr Khashoggi, an insider-turned-critic of the Saudi ruling regime, was killed and dismembered by people close to the crown prince after entering to pick up documents for his wedding.
According to sources, a big consignment of his personal amenities along with his security staff and Saudi media teams has also reached Islamabad.
The Crown Prince is expected to visit on afternoon and he will return on next day afternoon.
Responding to a query regarding China's reaction over Saudis investment in Gwadar, Mr Sharif said the former had no objection over the latter's plan to establish an oil refinery.
On Monday, Prime Minister's Adviser on Commerce and Investment Razak Dawood had said Pakistan and Saudi Arabia will sign three memoranda of understanding for investment in oil, renewable energy and mineral sectors during the royal visit.
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The investment deals with Saudi Arabia will mark a partial departure from Pakistan's decades-old policy of begging from Saudi Arabia in hard economic times.
In October, Prime Minister Imran Khan visited Riyadh where the prime minister tried to woo potential investors and secure funds for overcoming balance of payment crisis.
As a fellow Muslim country, Pakistan has long maintained strong ties with Saudi Arabia.
So far no date has been given for the visit of the Crown Prince but he is expected to arrive on a two-day trip before the end of this week. Turkish officials previously said they shared evidence with Saudi Arabia and other nations about Khashoggi's killing and repeatedly called for the suspects to be extradited to Turkey, where the crime was committed.
As part of the safety measures, security on the entry and exit points of the capital will remain tightened during the presence of Saudi delegation in Islamabad.
Other guests, who will be accompanying the crown prince, will be accommodated in five star hotels.
Preparations to welcome Saudi Crown Prince Mohammad bin Salman in his first-ever visit to Pakistan are in full swing and the government has already booked 300 super luxury Toyota Land Cruiser Prado vehicles for the royal visit starting from Sunday.
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